2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by Francois Fleuret //
16 // (C) Idiap Research Institute //
18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
19 ///////////////////////////////////////////////////////////////////////////
21 // A simple color image class
31 unsigned char ***_bit_plans, **_bit_lines, *_bit_map;
32 static const int RED = 0;
33 static const int GREEN = 1;
34 static const int BLUE = 2;
35 static const int RGB_DEPTH = 3;
43 RGBImage(int width, int height);
44 RGBImage(RGBImage *image, scalar_t scale);
47 inline int width() const { return _width; }
48 inline int height() const { return _height; }
50 inline void set_pixel(int x, int y, unsigned char r, unsigned char g, unsigned char b) {
51 ASSERT(x >= 0 && x < _width && y >= 0 && y < _height);
52 _bit_plans[RED][y][x] = r;
53 _bit_plans[GREEN][y][x] = g;
54 _bit_plans[BLUE][y][x] = b;
57 inline unsigned char pixel(int x, int y, int d) {
58 ASSERT(x >= 0 && x < _width && y >= 0 && y < _height && d >= 0 && d < RGB_DEPTH);
59 return _bit_plans[d][y][x];
62 virtual void read_ppm(const char *filename);
63 virtual void write_ppm(const char *filename);
65 virtual void read_png(const char *filename);
66 virtual void write_png(const char *filename);
68 virtual void read_jpg(const char *filename);
69 virtual void write_jpg(const char *filename, int quality);
71 virtual void draw_line(int thickness,
72 unsigned char r, unsigned char g, unsigned char b,
73 scalar_t x0, scalar_t y0, scalar_t x1, scalar_t y1);
75 virtual void draw_ellipse(int thickness,
76 unsigned char r, unsigned char g, unsigned char b,
77 scalar_t xc, scalar_t yc, scalar_t radius_1, scalar_t radius_2, scalar_t tilt);